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annotate arogue7/rings.c @ 176:db1c9a21a7c3

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srogue: prevent overflowing the score file name. If SCOREFILE is not defined, roguehome() is called to find a directory for the score file. It copies up to PATH_MAX-20 bytes from an environment variable to a static buffer. Later these are strcpy()'d to scorefile, which is of size LINLEN. Unfortunately LINLEN is 80 and PATH_MAX is at least 256. On Linux, it happens to be 4096. I haven't yet managed to crash or exploit it, but there are surely no beneficial consequences, so roguehome() has been modified to check the length, and the string it returns is also checked in main().
author John "Elwin" Edwards
date Sun, 02 Aug 2015 12:14:47 -0400
parents cadff8f047a1
children f9ef86cf22b2
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
125
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1 /*
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2 * rings.c - routines dealing specifically with rings
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3 * Advanced Rogue
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4 * Copyright (C) 1984, 1985, 1986 Michael Morgan, Ken Dalka and AT&T
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5 * All rights reserved.
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6 *
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7 * Based on "Rogue: Exploring the Dungeons of Doom"
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8 * Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman
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9 * All rights reserved.
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10 *
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11 * See the file LICENSE.TXT for full copyright and licensing information.
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12 */
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13
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b786053d2f37 arogue7: add missing header includes.
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14 #include <stdlib.h>
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15 #include "curses.h"
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16 #include "rogue.h"
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17
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18 /*
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19 * routines dealing specifically with rings
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20 */
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21
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22
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23 /*
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24 * how much food does this ring use up?
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25 */
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26 ring_eat(hand)
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27 register int hand;
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28 {
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29 if (cur_ring[hand] == NULL)
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30 return 0;
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31 switch (cur_ring[hand]->o_which) {
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32 case R_VAMPREGEN:
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33 return 3;
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34 case R_REGEN:
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35 return 2;
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36 case R_HEALTH:
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37 case R_SUSABILITY:
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38 return 1;
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39 case R_SEARCH:
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40 case R_SEEINVIS:
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41 return (rnd(100) < 33);
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42 case R_DIGEST:
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43 if (cur_ring[hand]->o_ac >= 0)
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44 return (-(cur_ring[hand]->o_ac)-1);
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45 else
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46 return (-(cur_ring[hand]->o_ac));
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47 }
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48 return 0;
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49 }
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50
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51 ring_on(item)
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52 register struct linked_list *item;
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53 {
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54 register struct object *obj;
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55 register int save_max;
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56
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57 obj = OBJPTR(item);
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58
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59 /*
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60 * Calculate the effect it has on the poor guy.
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61 */
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62 switch (obj->o_which)
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63 {
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64 case R_ADDSTR:
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65 save_max = max_stats.s_str;
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66 chg_str(obj->o_ac);
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67 max_stats.s_str = save_max;
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68 when R_ADDHIT:
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69 pstats.s_dext += obj->o_ac;
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70 when R_ADDINTEL:
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71 pstats.s_intel += obj->o_ac;
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72 when R_ADDWISDOM:
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73 pstats.s_wisdom += obj->o_ac;
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74 when R_SEEINVIS:
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75 turn_on(player, CANSEE);
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76 msg("Your eyes begin to tingle");
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77 light(&hero);
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78 mvwaddch(cw, hero.y, hero.x, PLAYER);
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79 when R_AGGR:
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80 aggravate(TRUE, TRUE);
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81 when R_WARMTH:
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82 turn_on(player, NOCOLD);
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83 when R_FIRE:
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84 turn_on(player, NOFIRE);
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85 when R_LIGHT: {
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86 if(roomin(&hero) != NULL) {
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87 light(&hero);
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88 mvwaddch(cw, hero.y, hero.x, PLAYER);
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89 }
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90 }
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91 when R_SEARCH:
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